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Pelagian Diver Controlled Closed Circuit Rebreather Systems Manual

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Pelagian Diver Controlled Closed Circuit Rebreather Systems Manual Pelagian DCCCR Operations Manual _________________________________________________________________________________________________________ REBREATHER LAB Pelagian DCCCR – Operations Manual © 2007 Rebreather Lab www.rebreatherlab.com [email protected] 53/10 Moo 3 Bophut Koh Samui • 84320 Surat Thani Thailand Phone +66 1 9326149 • Fax +66 (0)77 231389 © 2007 Rebreather Lab Co. LTD 2 Pelagian DCCCR Operations Manual _________________________________________________________________________________________________________ Using This Manual The manual is written from a practical perspective and follows the intended chronological order of first receiving the Pelagian kit, assembling the Pelagian DCCCR for the first time, preparing for diving on the unit, skills and post dive maintenance. ▲WARNING! There are a number of critical safety warnings in the manual which appear in the same format as the text contained within this box. These instructions MUST be followed. FAILURE TO ADHERE TO THEM MAY CAUSE YOUR INJURY OR DEATH. Guidance Notes: These notes will appear in italics and bold text. © 2007 Rebreather Lab Co. LTD 1 Pelagian DCCCR Operations Manual _________________________________________________________________________________________________________ Disclaimer The Pelagian DCCCR has NOT been tested for CE approval and has NOT been evaluated by any other third party testing facility. The Pelagian DCCCR has been tested by Rebreather Lab during 18 months prior to its public release and found highly capable, but as any data presented herein is highly subjective, users should use caution and set their own personal limits for duration, depth and operation. Using a rebreather is a potentially life threatening activity and a full understanding of its working principle and operation is absolutely necessary prior to use. Even with proper training there is no such thing as guaranteed safety. It must be understood that any mechanical or electronic device will fail at one point or another and typically when least desired or expected. A large part of your mandatory training course will be devoted to proper failure detection and appropriate response. In order to gain access to a Pelagian DCCCR you will be required to sign numerous documents containing a lot of legal print. The bottom line is that you are required to assume full responsibility of any outcome diving the Pelagian DCCCR. The Pelagian DCCCR is sold as a kit of parts that can only function for life support after additional equipment has been added. Before each dive it will be assembled, tested and deemed functional, or not, by YOU, the diver. Out of the additional components not included with the kit the most crucial is your brain. Without your brain the Pelagian is simply a pile of parts that are guaranteed NOT to function at all. Using the Pelagian DCCCR kit can result in anything between a pleasant dive, all the way to YOUR injury or death, The only one responsible for the outcome is YOU, the diver. If you are not willing to accept these terms you should stop right now. Cancel your course and return the Pelagian DCCCR kit, regardless of financial consequence. This will come across very harsh and certainly not encouraging, but the fact is that rebreathers have claimed the lives of many divers regardless of experience level. Your life is worth a lot more than money. Your life is in your own hands. You have been warned! © 2007 Rebreather Lab Co. LTD 2 Pelagian DCCCR Operations Manual _________________________________________________________________________________________________________ Warnings All diving is associated with the risk of injury or death. Rebreather diving carries inherent risks which may result in a number of different physiological problems. These include but are not limited to, gaseous conditions which may not become obvious to the diver and can result in confusion, panic, loss of consciousness and death. Rebreather specific physiological hazards include and are not limited to the following: Hypoxia Hyperoxia Oxygen Toxicity Hypercapnia Respiratory (airway and lung) damage from inhalation of absorbent Drowning ▲WARNING! It is imperative that all pre-dive checks are conducted before diving. During normal diving operations, further checks and monitoring should be made on every dive, in addition to those made pre-dive. Displays should be monitored regularly and sensor integrity verified with instant cell validation. ▲WARNING! This manual is a work in progress and this version may contain information that has not yet been proof read for correctness or accuracy. Make sure to check crucial information with your instructor before any in-water activites!!! © 2007 Rebreather Lab Co. LTD 3 Pelagian DCCCR Operations Manual _________________________________________________________________________________________________________ PELAGIAN DIVER CONTROLLED CLOSED CIRCUIT REBREATHER SYSTEMS MANUAL Table of Contents Disclaimer Page 2 Contents Page 4 Preface Page 6 Section 1 A Primer On Rebreathers Page 7 Section 2 Closed Circuit Rebreather Physiology Page 12 Section 3 Initial Assembly of the Pelagian DCCCR Page 18 3.1 Included components Page 19 3.2 Additional required components Page 20 3.3 Component preparation Page 21 3.4 Sensor Preparation Page 21 3.5 Loop O-Rings Page 22 3.6 Battery and Battery Housing Page 22 Section 4 Preparing To Dive the Pelagian DCCCR Page 24 4.1 Assembling and packing the scrubber Page 25 4.2 Cylinder addition Page 26 4.3 Counterlungs Page 27 4.4 X-Plate Page 28 4.5 Mouthpiece/Breathing Hose assembly Page 29 Section 5 Pelagian Pre-Dive Check Sequence 5.1 Calibration Page 31 5.2 ADV Page 31 5.3 PPO2 Displays Page 32 5.4 Buoyancy device/backplate/harness Page 33 5.5 Diluent and Oxygen First Stage assembly Page 28 5.6 Oxygen flow rate set-up Page 29 5.7 Loop integrity: Pressure tests Page 29 5.8 Bailout considerations Page 33 5.9 RebreatherLab Pelagian DCCCR dive planning & pre dive safety check sheet Page 34 Section 6 Pelagian DCCCR Working Principle 6.1 Instant Cell Validation Page 36-40 6.2 Oxygen Addition Valve Page 38 6.3 Oxygen Addition Valve – Manual Bypass Page 39 Section 7 Diving the Pelagian DCCCR Page 43 7.1 Training Course Skills Matrix Page 44 © 2007 Rebreather Lab Co. LTD 4 Pelagian DCCCR Operations Manual _________________________________________________________________________________________________________ 7.2 Pelagian added in water skills Page 43 7.3 Pelagian Training Course Failure Responses Page 44 Section 8 Closed Circuit Rebreather Dive Planning Page 50 Bail-out options Page 51 Planning a fixed set-point dive Page 52 Section 9 Pelagian Post-Dive Maintenance Page 56 9.1 Dis-assembly Page xx 9.2 Cleaning Page xx 9.3 Storage (ie remove battery if not using etc) Page xx Section 10 General Pelagian Maintenance Page 57 Module 1 final exam Page 58 Appendix / Charts Page 65 Buhlmann Air Decompression Tables Page 67 Equivalent Air Depth Chart Page 69 © 2007 Rebreather Lab Co. LTD 5 Pelagian DCCCR Operations Manual _________________________________________________________________________________________________________ Preface Thanks for choosing the Pelagian DCCCR as your preferred vehicle for exploring the underwater world! The objective for writing this text is to provide a comprehensive user manual bundled with all unit specific information needed to compliment a generic CCR course manual provided by your instructor. As often as possible we have used practical examples to explain principles and functions. It is our hope that this will make concepts come to life and serve to shorten the learning curve so that you will perceive your training and introduction to rebreather diving as being as enjoyable as possible, and not solely as a necessary obstacle to pass before the fun begins. No matter how comprehensive any manual may be, learning to dive happens in the water. Therefore you must use this manual in conjunction with a training course taught by a qualified instructor that leads to a certification by an authorized training agency. As the basic principles of various Closed Circuit Rebreathers are similar the first section only addresses general rebreather concepts. If you have previous rebreather experience and qualification you may skip this section and proceed directly to the subsequent chapters. If you are unfamiliar with rebreathers and have not yet been given your course manual, reading it will provide a platform to better comprehend the rest of the text. The material is presented in a chronological way starting with assembly and ending with dive skills. The appendix contains check lists, constant Po2 tables and other charts you might want to copy, laminate and bring on the boat. Your Pelagian DCCCR kit is the result of years of development and hard work. The reason for bringing this rebreather to the market is our belief that a small and lightweight unit that still offers long duration, simple operation and easy field service is needed. Whether these goals have been achieved or not is open for individual perception. We are therefore grateful for your feedback and suggestions for improvements and will do our best to meet your expectations with future developments. Good luck with your training and future rebreather dives! Andy Fritz CEO Rebreather Lab © 2007 Rebreather Lab Co. LTD 6 Pelagian DCCCR Operations Manual _________________________________________________________________________________________________________ Section 1 - A Primer on Rebreathers Your body is only metabolizing a small part of the oxygen contained in
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